C Programming Interview Questions

C is one of the most widely used programming languages, known for its efficiency, portability, and close-to-hardware features. It is often called a “mid-level programming language” because it combines the features of both low-level and high-level languages.

C continues to play a crucial role in systems programming, operating systems, compilers, embedded systems, and performance-critical applications, making it a common topic in technical interviews.

Topic-wise Interview Questions:

• Basics & Program Constructs
• Operators and Functions
• Pointers & Dynamic Memory Allocation
• Arrays and Strings
• Advanced Topics

Relevant Resources

To do well in interviews, you need to understand core syntax, memory management, functions, recursion, data structures, and practical coding problems.

1. Core Concepts: Arrays, Strings, Pointers, Dynamic Memory, Storage Classes, Type Casting, Preprocessor Directives

2. Advanced Topics: Structures, Unions, Enums, Macros vs Functions, Command-Line Arguments, Volatile Keyword, l-value vs r-value.